Fix the message for Make Field Readonly

Fixes #26219

src/EditorFeatures/TestUtilities/Diagnostics/AbstractDiagnosticProviderBasedUserDiagnosticTest.cs

@@ -36,6 +36,102 @@ internal virtual (DiagnosticAnalyzer, CodeFixProvider) CreateDiagnosticProviderA
                 : CreateDiagnosticProviderAndFixer(workspace, parameters);
         }
 
+        [Fact]
+        public void TestSupportedDiagnosticsMessageTitle()
+        {
+            using (var workspace = new AdhocWorkspace())
+            {
+                DiagnosticAnalyzer diagnosticAnalyzer;
+                try
+                {
+                    diagnosticAnalyzer = CreateDiagnosticProviderAndFixer(workspace).Item1;
+                }
+                catch (NotSupportedException)
+                {
+                    return;
+                }
+
+                if (diagnosticAnalyzer == null)
+                {
+                    return;
+                }
+
+                foreach (var descriptor in diagnosticAnalyzer.SupportedDiagnostics)
+                {
+                    if (descriptor.CustomTags.Contains(WellKnownDiagnosticTags.NotConfigurable))
+                    {
+                        // The title only displayed for rule configuration
+                        continue;
+                    }
+
+                    Assert.NotEqual("", descriptor.Title?.ToString() ?? "");
+                }
+            }
+        }
+
+        [Fact]
+        public void TestSupportedDiagnosticsMessageDescription()
+        {
+            using (var workspace = new AdhocWorkspace())
+            {
+                DiagnosticAnalyzer diagnosticAnalyzer;
+                try
+                {
+                    diagnosticAnalyzer = CreateDiagnosticProviderAndFixer(workspace).Item1;
+                }
+                catch (NotSupportedException)
+                {
+                    return;
+                }
+
+                if (diagnosticAnalyzer == null)
+                {
+                    return;
+                }
+
+                foreach (var descriptor in diagnosticAnalyzer.SupportedDiagnostics)
+                {
+                    if (descriptor.CustomTags.Contains(WellKnownDiagnosticTags.NotConfigurable))
+                    {
+                        if (!descriptor.IsEnabledByDefault || descriptor.DefaultSeverity == DiagnosticSeverity.Hidden)
+                        {
+                            // The message only displayed if either enabled and not hidden, or configurable
+                            continue;
+                        }
+                    }
+
+                    Assert.NotEqual("", descriptor.MessageFormat?.ToString() ?? "");
+                }
+            }
+        }
+
+        [Fact(Skip = "https://github.com/dotnet/roslyn/issues/26717")]
+        public void TestSupportedDiagnosticsMessageHelpLinkUri()
+        {
+            using (var workspace = new AdhocWorkspace())
+            {
+                DiagnosticAnalyzer diagnosticAnalyzer;
+                try
+                {
+                    diagnosticAnalyzer = CreateDiagnosticProviderAndFixer(workspace).Item1;
+                }
+                catch (NotSupportedException)
+                {
+                    return;
+                }
+
+                if (diagnosticAnalyzer == null)
+                {
+                    return;
+                }
+
+                foreach (var descriptor in diagnosticAnalyzer.SupportedDiagnostics)
+                {
+                    Assert.NotEqual("", descriptor.HelpLinkUri ?? "");
+                }
+            }
+        }
+
         internal async override Task<IEnumerable<Diagnostic>> GetDiagnosticsAsync(
             TestWorkspace workspace, TestParameters parameters)
         {

src/EditorFeatures/VisualBasicTest/Diagnostics/AddImport/AddImportTests_NuGet.vb

@@ -30,7 +30,7 @@ Namespace Microsoft.CodeAnalysis.Editor.VisualBasic.UnitTests.CodeActions.AddImp
         End Function
 
         Friend Overrides Function CreateDiagnosticProviderAndFixer(workspace As Workspace) As (DiagnosticAnalyzer, CodeFixProvider)
-            Throw New NotImplementedException()
+            Throw New NotSupportedException()
         End Function
 
         Friend Overrides Function CreateDiagnosticProviderAndFixer(workspace As Workspace, parameters As TestParameters) As (DiagnosticAnalyzer, CodeFixProvider)

src/Features/Core/Portable/MakeFieldReadonly/AbstractMakeFieldReadonlyDiagnosticAnalyzer.cs

@@ -17,7 +17,7 @@ protected AbstractMakeFieldReadonlyDiagnosticAnalyzer()
             : base(
                 IDEDiagnosticIds.MakeFieldReadonlyDiagnosticId,
                 new LocalizableResourceString(nameof(FeaturesResources.Add_readonly_modifier), FeaturesResources.ResourceManager, typeof(FeaturesResources)),
-                new LocalizableResourceString(nameof(FeaturesResources.Make_field_readonly), WorkspacesResources.ResourceManager, typeof(WorkspacesResources)))
+                new LocalizableResourceString(nameof(FeaturesResources.Make_field_readonly), FeaturesResources.ResourceManager, typeof(FeaturesResources)))
         {
         }
 

src/Test/Utilities/Portable/Diagnostics/DescriptorFactory.cs

@@ -14,7 +14,8 @@ public static class DescriptorFactory
         /// </summary>
         /// <remarks>
         /// Returned <see cref="DiagnosticDescriptor"/> has
-        /// - empty <see cref="DiagnosticDescriptor.Title"/>, <see cref="DiagnosticDescriptor.MessageFormat"/> and <see cref="DiagnosticDescriptor.Category"/>
+        /// - empty <see cref="DiagnosticDescriptor.Title"/> and <see cref="DiagnosticDescriptor.Category"/>
+        /// - <see cref="DiagnosticDescriptor.MessageFormat"/> set to <paramref name="id"/>
         /// - <see cref="DiagnosticDescriptor.DefaultSeverity"/> set to <see cref="DiagnosticSeverity.Hidden"/>
         /// - <see cref="WellKnownDiagnosticTags.NotConfigurable"/> custom tag added in <see cref="DiagnosticDescriptor.CustomTags"/>.
         /// </remarks>
@@ -22,7 +23,7 @@ public static class DescriptorFactory
         /// <returns>A <see cref="DiagnosticDescriptor"/> with specified <see cref="DiagnosticDescriptor.Id"/>.</returns>
         public static DiagnosticDescriptor CreateSimpleDescriptor(string id)
         {
-            return new DiagnosticDescriptor(id, title: "", messageFormat: "", category: "",
+            return new DiagnosticDescriptor(id, title: "", messageFormat: id, category: "",
                 defaultSeverity: DiagnosticSeverity.Hidden, isEnabledByDefault: true,
                 customTags: WellKnownDiagnosticTags.NotConfigurable);
         }